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Hymenoptera is a large order of insects, comprising the sawflies, wasps, bees, and ants. ... Hymenoptera as a group are highly susceptible to habitat loss, which can ...
Insects with population trends documented by the International Union for Conservation of Nature, for orders Collembola, Hymenoptera, Lepidoptera, Odonata, and Orthoptera. A 2020 meta-analysis found that globally terrestrial insects appear to be declining in abundance at a rate of about 9% per decade, while the abundance of freshwater insects appears to be increasing by 11% per decade.
The order Hymenoptera is a diverse group of plant pollinators who are highly susceptible to the negative effects of habitat loss, this could result in a domino effect between the plant-pollinator interactions leading to major conservation implications within this group. [47]
Hymenoptera: Family: Andrenidae: Genus: Andrena: ... and habitat loss and fragmentation. But the main reason is the reduced food-plant distribution because of larger ...
Bombus fraternus is an endangered species of bumblebee known commonly as the Southern Plains bumblebee. [2] It is native to the United States east of the Rocky Mountains.It is most often encountered in the southern Great Plains and along the Gulf Coastal Plain.
The main threat to the species is habitat loss. Damage to the habitat has occurred via development, the introduction of nonnative plants and animals, agriculture, recreational activity, and fire. Natural disasters such as hurricanes are also a threat to the habitat. This and other rare Hylaeus bee species were once "widespread" in Hawaii. [3]
This bee is still common and widespread, though it has declined in some areas and disappeared from a few parts of its historical range. Some of its host species have faced more significant declines. Potential threats include habitat loss, pesticides, pathogens from domesticated pollinators, competition from introduced bees, and climate change. [1]
In Scotland it is Listed as vulnerable, [6] the main threats to Osmia uncinata are the reduction of available habitat, the loss of the open areas within the forest and increased shading of the forage plants. Dead pine wood should be retained to provide nest sites, and the natural regeneration of the forest should be encouraged.